Improvement in lath-machine



1. L. KNowLToN.

Lath Sawing Machine.

Patented Aug 16, 1870.

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JOHN L. KNOWL'ION, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND WILLIAM H. BURR, OF SAME PLAGE.

Letters PatentNo. 106,374, dated August 16, 1870.

V nvrpaovmvrrnvfr 1N LATE-MAGHINE.

`The Schedule referred to in these Letters Paltent and making parl: of the same.

To allwhom. it may concern l Be it known that I, JOHNL. KNOWLTON, of Phil` adelphiain the county of Philadelphia aud'- State of Pennsylvania, have invented a new and improved Lath-Sawing Machine; and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable others skilled in the art tonn'ake and use thc same, reference being had to the accompanying drawing forming part of this specification, in 'which- AFigure l represents a front'elevation of my improved latir-sawing machine.

Figure 2 is a plan or top view of the same.

Figure 3 is a detail vertical transverse section of the same, taken on the piane of the line'x x, f ig. 2. v

vSimilar letters ot' reference indicate corresponding parts. I

This invention relates to a new construction ot' machine for sawing laths, pickets, Sec., and consists inthe application ot vertically adj ust-able guides, which hold the sawed pieces, and prevent them from' spring ing or twisting on the saws.

A, in the drawing, represents the frame of my improved sawing-machine.

B is the main shaft-hungin the same.

Upon the shai't are mounted the circular saws C C, which are so placed that the teeth are all in line, so that they can all `be tiled and ground at one operation.

On the frame'A are also the bearings'of the feedrollers D I), and ofthe dischargefrollers E E, the shafts of which receive rotary motion by suitable mechanism.

. The feed-rollers are set somewhat oblique, their outer ends being nearer the shaft lfl than the inner, so that they will tend to crowd the stui' against the main guide or fence u, preventing it from working outward away from the saws.

rThis inclination of the feed-rollers need be but slight for all ordinary purposes, asi even then it will sufce to hold the stu in the desired position.

F li" are toothed guides arranged on the frame A close to the saws, the teeth' von them being as far apart from each other as the saws.

These guides serve to hold the sawed laths or pickets apart and straight, preventingthem from bending or twistingr and from crowding the saws. l

The upper guide F' is made 'vertically adjustable in a slotted arm,.b, that projects from the frame, while the lower guide can be aiiixed, or part fof the sawing platform c, as shown.

' .'lhe feed-rollers are vertically adjustable in the orcombination with a gang-saw, substantially as and for the purpose herein shown and described. y

J O HN L. KNOWLTON.

i Witnesses:

Jos. H. OHUBB, G. W. CLOSE. 

